塔里木盆地大中型油气田形成及分布规律

目的 探讨塔里木盆地油气藏形成及分布规律,为油气田勘探部署提供依据。方法 运用石油地质综合研究方法,探讨了区域构造背景,有效烃源岩分布及其成熟度、储盖组合、后期构造变动等对塔里木盆地大中型油气田形成及分布的控制作用。结果 塔里木盆地油气分布十分复杂,油气藏形成及分布受多重因素控制;早期形成、长期继承发育的大型稳定古隆起及其斜坡以及前陆逆冲带第2,3排构造分别是大中型油气田形成的最有利地区;古隆起控油、斜坡富集以及隆起高部位油气易发生调整、斜坡部位有利于保存,是克拉通区油气藏形成和分布的重要特点;已发现的油气藏具有多期成藏、晚期调整的特点,早期形成的原生油气藏后期特别是晚喜山期普遍受到了调整改造,以克拉通区海相油气藏最为突出;保存条件对塔里木盆地油气藏形成与分布具有重要控制作用,特别是优质区域盖层的存在,是大中型油气田形成和保存的关键。结论 继承性古隆起与隐伏前陆逆冲带是塔里木克拉通区与前陆区寻找大中型油气田的最有利地区。     

Structural characteristics and petroliferous features of Tarim Basin

Using the modern tectonic geology theories andmethods such as the plate tectonic analysis, the paleo-struc-ture analysis, the structural-Iithofacies analysis, and the faultrelated fold and petroleum system, and combining with theseismic data, well drilling data and the circumferential fieldgeology, study on the structural characteristics and petro-leum prospect in the Tarim Basin has been carried out. Re-sults show that the Tarim Basin is a large superimpositionand combination basin with continental crustal basement,composed of a Paleozoic craton and Meso-Cenozoic forelandbasins. The characteristics of the basin are: the kernel partof the basin is the marine facies Paleozoic craton, superim-posed 4 continental facies foreland basins. Though the scaleof the paleozoic craton of the Tarim Basin is relatively small,the structure is steady. The petroleum prospect of the Paleo-zoic craton is: multiphase pool-generation and accumulationcontrolled by ancient uplift. The Meso-Cenozoic forelandbasins in the Tarim Basin, which are distributed on the era-tonic circumference and are a long-term subsidence, turnedinto rejuvenated foreland basins after the Meso-Cenozoicperiod. The petroleum prospects are: coal-bed generatinghydrocarbon, abundant natural gas, pool-generation in laterand recent periods, the oil and gas distribution controlled bythe foreland thrust belt. The structural characteristics ofTarim provide it with a superimposition and combinationpetroleum system of multiple resources, multiple reservoirsand multiphase pool-generation. The oil and gas explorationprospect covers two large fields: the Paleozoic craton and theMeso-Cenozoic foreland thrust belt.     

塔里木盆地石油地质基本特征

全面系统地总结并提出塔里木盆地１０大石油地质基本特征：（１）塔里木盆地为一古生界克拉通盆地与中新生界前陆盆地组成的大型叠合复合型盆地；（２）塔里木盆地经历了多期构造运动及多个演化发展阶段；（３）塔里木盆地主要有寒武—奥陶系、石炭—二叠系，三叠—侏罗系３套烃源岩；（４）塔里木盆地发育多套深埋优质储层及５套良好储盖组合；（５）塔里木盆地油气水性质复杂、油气藏类型丰富多样；（６）塔里木盆地富油又富气，天然气藏以凝析气藏为主；（７）塔里木盆地既有陆相油气，又有海相油气，已发现的石油以海相成因为主，天然气以陆相成因为主；（８）塔里木盆地已发现的油气藏以中小型为主，具有埋深大、丰度低、产能高的特点；（９）塔里木盆地具有多个成油气系统、多期成藏及油气多次运移再分配的特点；（１０）塔里木盆地油气分布十分复杂，油气聚集受多重因素制约     

塔里木盆地寒武—奥陶系石油地质特征

塔里木盆地是在古生代地台基础上发展起来的中—新生代叠合型含油气盆地.由于盆地长期处于相对稳定的大地构造环境,这就为油气的生成、聚集、保存提供了有利的地质条件。从盆地内发现的多处地面油气显示和目前钻井获得的高产油气流,都证实了塔里木盆地的油气资源是非常丰富的。特别是在盆地内发现的多套生油层来中,寒武—奥陶系为最佳。为此,本文就从寒武—奥陶系的石油地质特征入手,来探讨油气的分布规律。     

我国中西部前陆盆地油气地质特征及勘探战略

阐述了我国中西部前陆盆地石油地质认识现状和技术发展现状,梳理了制约我国前陆盆地油气勘探的瓶颈问题,确定了我国中西部前陆盆地分层次的油气勘探发展战略。     

南美地区油气地质特征及常规油气资源潜力

在分析南美油气地质特征的基础上,进行南美主要含油气盆地待发现常规油气资源评价,总结待发现油气资源分布规律,探讨其勘探前景。结果表明,受4大板块碰撞影响,南美沉积盆地可分成弧前、弧后、前陆、内克拉通和被动陆缘盆地5种类型。南美油气成藏条件优越,烃源岩以中新生界海相-陆相泥岩为主,生烃潜力大。储层以白垩系和第三系碎屑岩和碳酸盐岩为主,分布广泛。盖层中新生界区域性泥岩和盐岩为主,封堵能力强。采用以成藏组合为基础评价单元的资源评价方法,将南美65个盆地共划分出152个成藏组合,并进行了资源评价。预测南美65个主要含油气盆地的待发现石油可采资源量为263716MMB,待发现凝析油可采资源量为7405MMB,待发现天然气可采资源量为559020BCF。待发现油气资源在平面上呈“两带”展布、“两中心”富集特征;在纵向上主要富集于白垩系和第三系。被动陆缘盆地和前陆盆地是南美未来油气勘探的两个重点领域,其中深海和前陆冲断带是主要勘探方向,巴西、委内瑞拉是重点关注国家。     

松辽盆地深层古前陆盆地地层特征及其油气勘探意义

松辽盆地是中国最大的石油生产基地,也是目前世界上已发现特大油田、油气资源最为丰富的非海相沉积盆地.根据最新的研究成果,松辽盆地深层存在一套早中生代(T3-J1 2)含煤和火山岩的古前陆盆地沉积.这套地层的发现对松辽盆地深层油气勘探,特别是天然气勘探有着极其重要的意义.     

喀什凹陷的成因及找油方向

通过对喀什凹陷的基底结构和变形特征分析认为，喀什凹陷在侏罗纪—中新世期间的沉降主要与塔拉斯—费尔干纳断裂的拉分作用有关；上新世以后的变形受天山和昆仑山山前逆冲作用控制；凹陷北部斜坡带的变形机制主要是山前重力滑动和山麓逆冲作用。根据与喀什凹陷有类似成因联系的中亚含油气盆地的油气勘探经验预测，喀什凹陷的油气主要赋存于山前构造带向斜盆地内部的低凸起中，下第三系膏盐层为主要勘探标志层。     

封面人物简介—刘宝珺

Academician Liu Baojun was born in Tianjin in 1931, geologist, member of Chinese Academy of Sciences, Standing Committee Member,CCP members. He is the director of academic committee in State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation. He graduated from Beijing Institute of Geology in 1956.Then he worked in Beijing Institute of Geology, Chengdu College of Geology,Chengdu Research Institute of Geosciences and Minerals successively, and had hold posts in International Union of Geological Sciences. Now professor Liu Baojun is the Honorary Director of Chengdu Research Institute of Geosciences and Minerals, the honorary president of chengdu university of technology,honorary president of technology association in Sichuan Province, the committee member of the 9th national CPPCC, the honorary president of geological association in Sichuan province,the Evaluation Committee Member of China National Science and Technology Awards, the Group Leader of the advanced expert consultation group.Academician Liu Baojun has an outstanding achievement in the field of sedimentary geology,basin analysis and plate motion, strata-bound deposits,sequence formation and incident geology, global sedimentary geology,oil and gas reservoir, the facies palaeogeography,biomineralization and so on. He pushed Chinese sedimentary studies to the forefront of the world, and many research results have a pioneer and inspiration influence in China.In the 1960s,Many departments in our nation adopted the new analysis of the deposition and ancient geography methods which he bring forward. In the 1970s,he put forward the theory of differentiation process and mineralization after deposition period. In the 1980s,he published the results of South Sichuan carbonate rocks and storm rock,breaking a new ground on the study of storm rock..In the 1990s,he first bring the global change concept to the field of geology study in our nation, and put forward the theory of the unified geological field. Many departments quoted and spread his theory, concept, and method,especial in the aspect of mineral exploration. On the basis of his theory and method, it has detected metal deposits such as Lead,Zinc,Copper in Hunan,Guangxi,Yunnan province and so on. He has published more than 100 articles on Chinese and foreign publications successively, and written 20 monographs, which have been the important textbook and reference books for geological staff in colleges , universities and other departments. In 1986, Liu Baojun acquired the outstanding contributions of young and middle-aged experts national title awarding, and in 1989 he obtained Lisigang geological science award. On 30th International Geological Congress in 1996,he gained the most valuable award which only represent the world's Geological Sciences highest honor. He was the first geological who obtained this award, and also was the NO.20 geologist who has obtained this laurel in the past century on the world. In 1997 he was conferred the honor title of excellent science and technology technology worker.In 2000,in China-related paleontology coral masterpiece which was written by Fan yingnian et al., the newly discovered fossils was named BAOJUN Coral, it presented certainly recommend to his contribution in Geology in China by geologicians.     

陇东地区长9砂岩储层成岩作用及孔隙演化

探讨鄂尔多斯盆地陇东地区长9油层组砂岩成岩作用对储层物性的影响及孔隙演化模式。通过薄片鉴定、扫描电镜、X射线衍射、钻井岩心、孔渗测定等手段,对陇东地区长9油层组砂岩储层的岩石特征、成岩作用及孔隙演化进行研究。研究区长9油层组砂岩储层处于中成岩阶段A-B期,岩石类型主要为岩屑长石砂岩、长石岩屑砂岩,成分成熟度与结构成熟度均较低,为典型的中-低孔、低渗砂岩储层。主要成岩作用类型有压实作用、胶结作用、交代作用及溶蚀作用。通过对砂岩储层的原始孔隙度进行定量恢复,结果表明胶结作用导致储层孔隙损失约11.8%;而压实作用导致孔隙的损失达14.22%～25.37%,是造成原始孔隙度降低主要原因;后期的溶解作用及交代作用对改善储层孔隙度具有一定的建设性作用。